Samia said the task ahead for CCM is to implement what it promised Tanzanians through the 2020 election manifesto.
M23 rebels last month massacred at least 131 civilians in the DR Congo's volatile east, according to UN.
The Zambian government was not aware the student had been recruited to fight in Ukraine.
The Aïr Festival, which was launched in 2001, last took place in 2020.
China is also building Africa Centre for Disease Control headquarters expected to be completed early next year.